The value of a digit is divided by this number as it moves to the right in the place value chart...........what is the number???

Can anybody explain this???

Answer is 10 as any number divided by 10 result to shift of decimal point to its left or in other word it shift number to right side  in the place value chart . 
eg . 1230 divided by 10 gives 123.0  ,here number are shifted to their right place .

Hope this would have cleared your doubt .